Runnel Stone | |
|---|---|
 Cardinal mark anchored to the south of the Runnel Stone to guide ships away from the reef | |
  Runnel Stone Location in Cornwall | |
| Coordinates: 50°01′48″N 5°40′30″W / 50.030°N 5.675°W | |
| Location | Cornwall, UK |
The Runnel Stone (Cornish: Men Reunel, meaning stone abounding in seals), or Rundle Stone, is a hazardous rock pinnacle about 1-mile (1.6 km) south of Gwennap Head, Cornwall, England, United Kingdom. It used to show above the surface at low water until a steamship struck it in 1923.